Question

1) 3x²=0; 2) -x²-x=0;

Answer 1

Ответ:

$= = = = = = = = = = = =$

Answer 2

To solve these quadratic equations, you can use the quadratic formula or factor them if possible. Let's solve each equation:

1. 3x² = 0

This is a simple quadratic equation, and you can solve it by setting it equal to zero and factoring:

3x² = 0

Divide both sides by 3:

x² = 0

Now, take the square root of both sides:

√(x²) = √0

x = 0

So, the solution to the equation 3x² = 0 is x = 0.

2. -x² - x = 0

This equation is also a quadratic equation. To solve it, set it equal to zero and factor if possible:

-x² - x = 0

Factor out a common factor of -x:

-x(x + 1) = 0

Now, you have two factors:

1. -x = 0
2. x + 1 = 0

For the first factor:

-x = 0

Multiply both sides by -1 to isolate x:

x = 0

For the second factor:

x + 1 = 0

Subtract 1 from both sides:

x = -1

So, the solutions to the equation -x² - x = 0 are x = 0 and x = -1.